JP5044147B2 - Top edge jig - Google Patents

Description

  The present invention relates to a top edge jig used for setting a top edge level which is an upper end of a concrete foundation when a concrete foundation of a building is placed.

When forming concrete foundations for homes, etc., concrete with poor fluidity is cast up to a certain height, and then a leveler with high cement ratio and high fluidity is poured up to the top level. It is formed on a flat surface with irregularities corrected. In that case, the height of the concrete and the height of the leveler are determined using a top edge jig and a laser emitter. Conventionally, as this type of top end jig, for example, as shown in Patent Document 1, an adjustment screw body is screwed so as to be able to advance and retreat into a screw hole opened at an upper end portion of a long bar-shaped auxiliary tool body. An upper blade portion for leveling the concrete extending in a direction perpendicular to and horizontally with respect to the auxiliary tool body is fixed to the upper part of the main body, and around the lower part of the auxiliary tool body extending in a direction perpendicular to and perpendicular to the auxiliary tool body. 2. Description of the Related Art A top edge assisting device is known in which a lower blade portion is fixed to prevent stopping. The top end assisting device is inserted into the concrete in the vertical direction after placing the concrete, and the auxiliary tool body is vertically embedded up to the position of the upper blade. And after concrete hardens | cures, the adjustment screw body is further rotated, the top end level which is final height is adjusted, and a concrete foundation is formed by pouring a leveler to a top end level.
Japanese Patent No. 2649483

  By the way, in the case of the above-mentioned top end auxiliary device, the concrete is not sufficiently hardened because the auxiliary device is subjected to rotational force when turning the adjusting screw body and adjusting the top end level after being inserted into the concrete. The auxiliary device moves and its position becomes unstable. Therefore, when adjusting the top level with the adjusting screw body, the concrete needs to be hardened, but it takes time to harden the concrete, especially in winter when the temperature is low, the time to harden is very long. Become. As a result, there is a problem that work efficiency for adjusting the top end level is deteriorated and workability of concrete foundation formation is deteriorated. In addition, if the concrete foundation is excessively hardened, the adhesive strength between the concrete foundation and the leveler tends to be low. Therefore, in some cases, it is necessary to apply an adhesive to the concrete foundation.

On the other hand, as shown in Patent Document 2, for example, a level setting bar serving as a mark of the top end level, and a pair of clamping parts and level setting bars that sandwich and fix a reinforcing bar from both sides are fixed. There is known a top end level management tool including a fixing member having a holding portion that can be held by adjusting the position, and the holding portion includes an adjusting portion that can adjust each latching position. In addition, the top end level management tool is provided with an enlarged diameter portion at a position that is lowered by a predetermined distance from the upper end of the level setting bar. This top end level management tool is adjusted and fixed to a desired position of the reinforcing bar by the holding portion. Thereafter, the laser light emitter is used to aim at the top level of the top of the top level management tool, and the level adjustment is performed by rotating the enlarged diameter portion of the level setting bar. The concrete is cast up to the expanded portion, and a leveler is poured onto the top of the top level control tool to correct the unevenness of the concrete.
JP-A-2005-48510

  By the way, in the case of the above-mentioned top end level control tool, since the attached reinforcing bars are not completely fixed, there is a possibility of moving up, down, left and right when placing concrete, and the unevenness of the concrete becomes large or the concrete is inclined. May occur. In this case, since the top level set by the top level control tool also fluctuates, it is necessary to readjust the final top level after placing concrete. However, since this top level control tool cannot readjust the top level, it cannot cope with such a problem. Moreover, since the structure of a clamping part is complicated, there exists a problem that attachment to a reinforcing bar is not easy between narrow foundation forms, and a price becomes expensive. In addition, since the leveler shrinks greatly due to drying, the leveler surface is recessed and the head of the top end level control tool protrudes after the leveler is dried. There is a problem that the top level cannot be readjusted after the concrete is hardened with the control tool.

  The present invention is intended to solve the above-described problems, and provides a top end jig that can easily perform precise adjustment of the final top end level within a short period after placing concrete. The purpose is to do.

In order to achieve the above object, the structural features of the present invention are a rod-shaped adjustment shaft member provided with a top end height adjusting means for adjusting the top end height on one end side, and an adjustment shaft member on one end side of the adjustment shaft member. A vertical positioning portion that determines the vertical position of the adjustment shaft member provided, and a reinforcing bar that is provided on the outer wall on the other end side of the adjustment shaft member in parallel or perpendicular to the axial direction of the adjustment shaft member and is disposed on the ground A reinforcing bar mounting part that is arranged in a vertical state with one end facing upward, and the reinforcing bar mounting part is attached to the adjusting shaft member integrally or separately from the adjusting shaft member. A semi-cylindrical shape formed to have a predetermined first diameter extending on both sides, and a first engagement extending outward in the distal direction on the outer peripheral surface of a portion extending to one side and extending in the axial direction A second engagement provided with a protrusion and protruding outward in the vicinity of the adjusting shaft member and extending in the axial direction A semi-cylindrical shape formed with a predetermined second diameter larger than the first diameter, which is attached so as to be able to be bent and deformed at the tip of the first mounting piece provided on the other side of the first mounting piece. In addition, the first attachment protrusion and the second attachment piece provided with the engagement protrusion that can be engaged with the second engagement protrusion are provided on the distal end side .

  In the invention configured as described above, the top edge jig is arranged in a vertical state with one end of the adjustment shaft member facing upward, and is aligned with the upper end position of the concrete placement using the vertical positioning portion. Then, it is easily fixed to the reinforcing bars disposed between the molds at the reinforcing bar mounting portion fixed to the outer wall on the other end side. After that, the concrete is driven to the position of the vertical positioning part of the adjustment shaft member. However, since the top edge jig is fixed to the reinforcing bar and does not move, the ceiling provided on the adjustment shaft member is not even before the concrete is sufficiently cured. The final top level of the concrete foundation can be precisely adjusted by the end height adjusting means, and the leveler can be poured according to the top level. As a result, in the present invention, the height of the top end can be adjusted within a short period of time after placing the concrete with respect to the positional deviation of the reinforcing bars after placing the concrete in the vertical and horizontal directions, and fluctuations due to the unevenness and inclination of the concrete surface. Since the final top level can be quickly and appropriately determined by the means, the workability of the concrete placing work is improved. Furthermore, in the present invention, since the height of the top edge can be adjusted before the concrete foundation is hardened, the leveler can be poured before hardening, so that the bond strength between the concrete and the leveler can be increased. Since there is no need to apply an adhesive to the foundation, the concrete foundation placing operation is further simplified. In the present invention, even if the head of the top height adjustment means protrudes from the leveler surface after drying the leveler, the head can be easily lowered by adjusting the top height adjustment means. The surface can be flat.

Furthermore, in this invention, when attaching a reinforcing bar attachment part to a reinforcing bar slightly thicker than the 1st diameter, the 1st attachment piece is fitted on the outer periphery of this reinforcing bar, and the latching protrusion of a 2nd attachment piece is 1st attachment. By engaging with the second engaging protrusion of the piece, the reinforcing bar mounting portion is firmly fixed to the reinforcing bar by being tightened by the second mounting piece. In addition, when attaching the reinforcing bar mounting portion to a reinforcing bar slightly thicker than the second diameter, which is larger than the first diameter, the first mounting piece is widened and fitted to the outer periphery of the reinforcing bar together with the second mounting piece. By locking the locking protrusion with the first engaging protrusion of the first mounting piece, the reinforcing bar mounting portion is firmly fixed to the reinforcing bar by being tightened by the second mounting piece. As a result, in the present invention, since it can be fixed to two types of reinforcing bars having different thicknesses by a single reinforcing bar mounting portion, it is possible to easily and inexpensively cope with reinforcing bars having different diameters. In addition, according to the present invention, since the reinforcing bar mounting portion is fastened with the second mounting piece and fixed to the reinforcing bar, the strength of the mounting is ensured, and a large load is applied to the adjusting shaft member by placing concrete. However, it is possible to reliably prevent the reinforcing bar mounting portion from coming off from the reinforcing bar. In the present invention, the reinforcing bar mounting portion can be easily attached to the reinforcing bar by locking the locking protrusion of the second mounting piece to the first engaging protrusion or the second engaging protrusion of the first mounting piece. Therefore, it is possible to easily attach the top edge jig to the reinforcing bar between the narrow foundation molds.

  Further, in the present invention, the top end height adjusting means includes a screw hole formed extending in the axial direction at one end of the adjusting shaft member, and an adjusting screw screwed into the screw hole and movable in the axial direction. It can be comprised by these. As a result, after the concrete is placed, the final top end level of the concrete foundation can be easily and precisely adjusted by the adjustment screw screwed into the screw hole of the adjustment shaft member.

  In the present invention, the top height adjusting means includes a threaded portion formed on a cylindrical outer peripheral surface on one end side of the adjusting shaft member, and a thread groove on the inner peripheral surface in a cylindrical shape with one end sealed. The cap-shaped adjusting tool is formed and screwed into the threaded portion of the adjusting shaft member at the thread groove on the inner peripheral surface so as to be movable in the axial direction. Thereby, after concrete is cast, the final top end level of the concrete foundation can be easily and precisely adjusted by the adjusting tool screwed into the threaded portion on the one end side of the adjusting shaft member. Further, the top level can be easily adjusted without using a driver by turning the adjustment tool by hand.

  In the present invention, a plurality of linear protrusions extending outward in the axial direction can be provided on the outer surface of the adjusting shaft member at a plurality of locations in the circumferential direction. As a result, the linear protrusion functions as a reinforcing rib with respect to the adjustment shaft member, so that the bending strength of the adjustment shaft member is increased, and even if a large load is applied by the cast concrete to be placed, the adjustment shaft member is bent. Can be prevented.

Further, in the present invention, the vertical positioning portion integrally includes a bottom plate portion extending in the radial direction from the outer periphery of the adjustment shaft member and an annular peripheral wall portion extending from the outer periphery of the bottom plate portion toward one end side in the axial direction. be able to. Thereby, the jig for height adjustment can be erected on the plate-like vertical positioning portion, and can be used for adjusting the concrete placement height and the top level. Further, the vertical positioning portion can be used as a mark for placing concrete. In addition, moisture that flows down from the upper end of the adjustment shaft member between the peripheral wall surface and the concrete can be stopped by the vertical positioning part, so that moisture adheres to the reinforcing bar from the lower end of the adjustment shaft member through the reinforcing bar attachment part. By preventing this, it is possible to prevent the rust of the reinforcing bars.

  In the present invention, since the top edge extending jig is firmly fixed to the reinforcing bar by the reinforcing bar mounting part or the reinforcing bar insertion hole provided separately or integrally with the adjusting shaft member, the concrete is positioned at the specified position of the adjusting shaft member. Even after the concrete is hardened sufficiently, the top end level of the concrete foundation can be adjusted easily and precisely by the top end height adjusting means provided on the adjusting shaft member. As a result, in the present invention, since the final top level can be precisely adjusted within a short period of time after the concrete is placed, the workability of the concrete placement work is improved and the work cost is reduced. It can be greatly reduced. Furthermore, in the present invention, since the leveler can be poured before the concrete foundation is hardened, and the adhesive strength between the concrete and the leveler is increased, there is no need to apply an adhesive to the concrete foundation. Is further simplified. Further, in the present invention, even if the head of the top end level control tool protrudes from the leveler surface after the leveler is dried, the head can be easily lowered by the top end height adjusting means. Can be a surface.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a top end projection jig, which is a reference example 1 , by a front view and a bottom view, FIGS. 3 and 4 show an adjustment shaft member and a reinforcing bar mounting member by a front view and a plan view, and FIG. The use state of a top edge extraction jig | tool is shown with explanatory drawing. The top end jig 10 is a long rod-shaped resin and has an adjustment shaft member 11 having a screw hole 13 extending in the axial direction at one end (upper end in FIG. 1) and an adjustment screwed into the screw hole 13. On the outer wall of the screw 14, the vertical positioning portion 15 that determines the vertical position of the adjustment shaft member 11 provided integrally on one end side of the adjustment shaft member 11, and the other end side (lower end side in FIG. 1) of the adjustment shaft member 11. A resin reinforcing bar mounting member 18 which is a reinforcing bar mounting part which is a separate member from the adjustment shaft member 11 which is fixed and detachably attached to the reinforcing bar 1 is provided.

  As shown in FIGS. 3A and 3B, the adjustment shaft member 11 includes a straight round bar portion 11a and a square columnar portion 12 having a square columnar cross section extending in the axial direction from the other end (the lower end of FIG. 1). have. The rectangular column portion 12 is arranged coaxially with the round bar portion 11a, has a length of about 1/5 of the length of the round bar portion 11a, and one side length is equal to the outer diameter of the round bar portion 11a. It is the same. The screw hole 13 is provided in the round bar portion 11a so as to extend by a predetermined dimension from one end in the axial direction thereof. In the vicinity of one end in the axial direction of the round bar portion 11a, a thin disc-shaped vertical positioning portion 15 is provided coaxially extending from the outer peripheral surface in the direction perpendicular to the axis. The vertical positioning unit 15 is provided with a top end leveling bar standing on the top and adjusting the height with a laser emitter to determine the concrete placement position and the top end level. The prism portion 12 is provided with an engagement recess 16 that is a groove extending over the entire periphery at a position near the other end in the axial direction.

  As shown in FIGS. 4A and 4B, the reinforcing bar attachment member 18 includes a cylindrical first attachment part 19 that is detachably attached to the adjustment shaft member 11, and a substantially cylindrical second attachment part that is detachably attached to the reinforcing bar. 23 are integrally formed with the axial direction aligned and adjacent to each other. The first mounting portion 19 is provided with a rectangular prism insertion hole 21 coaxially having the same shape and the same length as the prism portion 12. The first mounting portion 19 is provided with a locking convex portion 22 protruding from the wall surface of the insertion hole 21 at a position corresponding to the engaging concave portion 16 near the other end in the axial direction. The second mounting portion 23 has a thin cylindrical shape and is an insertion port 24 in which both ends in the axial direction are cut out in a range of a central angle of approximately 60 ° at a position opposite to the radial direction of the first mounting portion 19. Both side edges in the circumferential direction of the insertion opening 24 are widened outward to be slightly protruding guide portions 25, which are substantially C-shaped when viewed from the axial direction. Moreover, the 2nd attachment part 23 is slightly smaller than the internal diameter of the reinforcing bar with which the internal peripheral surface is mounted | worn, and is fixed to a reinforcing bar in the state which tightened the reinforcing bar. Further, the second mounting portion 23 is provided with a ring-shaped locking portion 26 slightly protruding from the inner peripheral surface at a position in the vicinity of the other end in the axial direction (the lower end in FIG. 4A). It is fixed to the reinforcing bar so that it does not move in the axial direction. In addition, the latching | locking part 26 can also be omitted as needed.

  By inserting the adjustment shaft member 11 into the insertion hole 21 of the first mounting portion 19 from the prismatic part 12 side, the engagement concave part 16 provided in the vicinity of the other end in the axial direction of the prismatic part 12 from the wall surface of the insertion hole 21. When the protruding locking projections 22 are locked, they are firmly attached to each other to form the top edge jig 10. The rebar attachment member 18 is engaged with the rebar erected between the molds by the second attachment portion 23, whereby the ring-shaped engagement portion 26 of the second attachment portion 23 is engaged with the protrusion of the rebar, It is securely fixed to the reinforcing bar so that it does not move in the axial direction.

Next, the operation of Reference Example 1 will be described with reference to FIG. First, the top end jig 10 is arranged in a vertical state with one end of the adjustment shaft member 11 facing upward, and the vertical positioning portion 15 is aligned with the upper end position L1 of the concrete placement. By pressing the second mounting portion 23 of the reinforcing bar mounting member 18 fixed to the outer wall on the lower end side against the vertical reinforcing bar 1 disposed between a pair of molds (not shown), the insertion port 24 passes through the guide portion 25 and the vertical reinforcing bar is inserted. 1 is expanded by being fitted into the vertical reinforcing bar 1 and firmly fixed. Further, the ring-shaped locking portion 26 of the second mounting portion 23 is locked to the protrusion of the vertical reinforcing bar 1, and the reinforcing bar mounting member 18 is securely fixed to the vertical reinforcing bar 1 so as not to move in the axial direction.

  Thereafter, the concrete is driven to the vertical positioning portion 15 position L1 of the adjusting shaft member 11, but the top edge jig 10 is fixed to the reinforcing bar 1 and does not move, so even before the concrete 2 is sufficiently hardened, immediately. The final height L2 of the concrete foundation can be precisely adjusted by the adjusting screw 14 screwed into the screw hole 13 of the adjusting shaft member 11. Therefore, the final top end level can be quickly and appropriately determined by the adjusting screw 14 with respect to vertical and horizontal position shifts of the vertical reinforcing bars 1 after the concrete placement, and fluctuations due to unevenness and inclination of the concrete surface. . After that, by pouring the leveler 3 in accordance with the final height L2, a concrete foundation having a prescribed height is formed.

As a result, in the first reference example , the vertical rebar 1 after concrete placement is moved up and down, left and right, and fluctuations due to unevenness and inclination of the concrete surface are finalized within a short period after concrete placement. Therefore, it is possible to easily perform precise adjustment at the top level, so that the workability of concrete placing work is improved and the work cost is greatly reduced. The top edge jig 10 has a simple configuration including a resin-made adjusting shaft member 11 and a reinforcing bar mounting member 18 and is provided at a low cost. The effort of is reduced. Moreover, in the reference example 1 , since the reinforcing bar attaching member 18 can be easily attached to the vertical reinforcing bar 1 by the second mounting part 23, the vertical reinforcing bar 1 of the top edge jig 10 between the narrow foundation molds is provided. Is easily installed. Further, since the adjusting shaft member 11 and the reinforcing bar attaching member 18 are separate members, the forming die can be made in a simple shape, the adjusting shaft member 11 and the reinforcing bar attaching member 18 can be easily formed, and the forming die can be made inexpensively. Provided.

Further, since the reinforcing bar mounting member 18 is constituted by the first mounting part 19 and the second mounting part 23, a reinforcing bar mounting member of the second mounting part 23 corresponding to the diameter of the reinforcing bar is prepared and a common adjusting shaft is provided. By combining with a member, it is possible to easily and inexpensively cope with reinforcing bars having different diameters. Further, by providing the vertical positioning portion 15 on one end side of the adjustment shaft member 11, moisture flowing down from the upper end of the adjustment shaft member 11 between the peripheral wall surface and the concrete can be stopped by the vertical positioning portion 15. For this reason, it is possible to prevent rust generation in the vertical reinforcing bar 1 by preventing moisture from adhering to the vertical reinforcing bar 1 from the lower end of the adjusting shaft member 11 through the reinforcing bar attaching member 18. Furthermore, in Reference Example 1 , since the height of the top end can be adjusted by the adjusting screw 14 before the concrete foundation is hardened, the leveler can be poured before hardening, so that the adhesive strength between the concrete and the leveler is high. Since it is enhanced, it is not necessary to apply an adhesive to the concrete foundation, so that the concrete foundation placing operation is further simplified. In Reference Example 1 , even if the head of the adjustment screw 14 protrudes from the leveler surface after the leveler is dried, the head can be easily lowered by turning the adjustment screw 14, so that the leveler surface can be easily flattened. Can be.

Next, a modification of the reference example 1 will be described.
In the modified example, the top end fitting jig 10A is integrated with the first attachment portion 19 and the second attachment portion 23 of the reinforcing bar attachment member 18 aligned in the axial direction in the top end projection jig 10 of Reference Example 1. On the other hand, as shown in FIGS. 6 and 7, the first attachment portion 19 and the second attachment portion 23 of the reinforcing bar attachment member 28 are attached so that the axial directions thereof are orthogonal to each other, and the adjustment shaft About the member 11, it is the same as that of the reference example 1. FIG. As shown in FIGS. 8A and 8B, the reinforcing bar attaching member 28 is formed by integrally forming the first attaching part 19 and the second attaching part 23 so that the axial directions thereof are orthogonal to each other. The same as the attachment member 18. Thus, the top end jig 10A is attached to a horizontal reinforcing bar (not shown) at the second attachment portion 23 with the adjustment shaft member 11 oriented in the vertical direction. . As a result, in the modified example, the same effect as in Reference Example 1 can be obtained for the horizontal reinforcing bars.

Next, Reference Example 2 will be described with reference to the drawings.
FIGS. 9 and 10 show a top edge jig as a reference example 2 in a front view and a plan view. The top end jig 30 is a straight straight round rod made of resin and has an adjustment shaft member 31 having a screw hole 33 extending at a predetermined dimension in the axial direction at one end (upper end shown in FIG. 9), and the screw hole 33. And an reinforcing bar attachment portion 35 that is integrally formed on the outer wall on the other end side of the adjusting shaft member 31 and is detachably attached to the reinforcing bar.

  The adjustment shaft member 31 is provided with a thin disc-like vertical positioning portion 32 extending in a direction perpendicular to the axis from the outer peripheral surface at a position near one end in the axial direction. The vertical positioning portion 32 is provided with a bar for raising the top end level, and the height is adjusted by a laser emitter to determine the concrete placement position and the top end level. The reinforcing bar attachment portion 35 has a thin cylindrical shape and is a cut-out insertion port 36 that extends between both ends in the axial direction at a central angle of about 60 ° at a position opposite to the adjustment shaft member 31 in the radial direction. Both side edges in the circumferential direction are widened outward to form a slightly protruding guide portion 37, which is substantially C-shaped when viewed from the axial direction. The inner diameter of the reinforcing bar attachment portion 35 is slightly smaller than the inner diameter of the reinforcing bar to be mounted, and is fixed to the reinforcing bar in a state where the reinforcing bar is tightened. Furthermore, the reinforcing bar attachment part 35 is provided with a ring-shaped locking part 38 slightly protruding from the inner peripheral surface at a position in the vicinity of the other axial end (the lower end shown in FIG. 9). Since the locking portion 38 is locked to the protrusion of the reinforcing bar, it is securely fixed to the reinforcing bar so as not to move in the axial direction. In addition, the latching | locking part 38 can also be omitted as needed.

Next, the operation of Reference Example 2 will be described. First, the top end jig 30 is arranged in a vertical state with one end of the adjustment shaft member 31 facing upward, and the vertical positioning portion 32 is aligned with the upper end position L1 of the concrete placement. By pressing the reinforcing bar attachment portion 35 fixed to the outer wall on the lower end side against the vertical reinforcing bar 1 disposed between the molds, the insertion port 36 is pushed out by the vertical reinforcing bar 1 through the guide portion 37 and is fitted to the vertical reinforcing bar 1. Combined and fixed. Further, the ring-shaped locking portion 38 of the reinforcing bar mounting portion 35 is locked to the protrusion on the outer periphery of the vertical reinforcing bar, and the reinforcing bar mounting portion 35 is securely fixed to the vertical reinforcing bar so as not to move in the axial direction. Thereafter, the concrete is driven to the upper end L1 of the adjustment shaft member 31, and at that time, the height L2 of the concrete foundation is finally precisely adjusted by the adjustment screw 34 screwed into the screw hole 33 of the adjustment shaft member 31. The leveler is poured in accordance with the height L2.

As a result, in this Reference Example 2 , with respect to the displacement of the reinforcing bars up and down, left and right after the concrete placement, and fluctuations due to the unevenness and inclination of the concrete surface, the final ceiling within a short period after the concrete placement. Since precise adjustment at the end level can be easily performed, the workability of the concrete placing work is improved and the work cost is greatly reduced. Further, the top edge jig 30 is provided at a low cost with a simple structure made of resin, and can be easily attached to the reinforcing bar, thereby reducing the labor of placing concrete. Furthermore, since the adjustment shaft member 31, the vertical positioning portion 32, and the reinforcing bar attaching portion 35 are integrally formed, the top edge jig 30 can be provided at low cost because it saves time for forming.

Next, a modification of the reference example 2 will be described.
As shown in FIGS. 11 and 12, the modified top end jig 30 </ b > A is similar to the top end jig 30 of Reference Example 2 in that a reinforcing bar is added to the lower end side of the adjustment shaft member 31 in addition to the reinforcing bar mounting portion 35. Reinforcing bar attachment portions 39 having different diameters are arranged at positions opposed to the attachment portion 35 in the radial direction. The reinforcing bar mounting portion 39 has the same structure as the reinforcing bar mounting portion 35, and has a thin cylindrical shape made of resin and is a notched insertion slot extending between both axial ends at a central angle of approximately 60 ° at one circumferential position. 41. Both side edges in the circumferential direction of the insertion port 41 are widened outward to be slightly protruding guide portions 42, and are substantially C-shaped when viewed from the axial direction. Furthermore, the reinforcing bar attachment part 39 is provided with a ring-shaped locking part 43 slightly protruding from the inner peripheral surface at a position near one end in the axial direction, and is locked to the protrusion of the reinforcing bar when attached to the reinforcing bar. Thus, it is securely fixed to the reinforcing bar so as not to move in the axial direction. The reinforcing bar attachment portions 35 and 39 correspond to reinforcing bars having outer diameters of 10 mmφ and 13 mmφ, for example. In addition, by changing the diameter of the insertion port 41, it is possible to correspond to a reinforcing bar having an outer diameter of 16 mmφ, 19 mmφ, 22 mmφ, or the like. About another structure, it is the same as that of the reference example 2, and the same code | symbol is used about the same location.

In the above modification, by preparing one type of top edge jig 30A, it is possible to fix using one of the reinforcing bar attachment portions 35, 39 corresponding to reinforcing bars having different diameters. The installation work of the top end jig 30A is simplified. In addition, since it is not necessary to prepare various types of top edge jigs according to the diameter of the reinforcing bars, the labor of managing the top edge jigs can be saved, and the price of the jigs can be relatively low. Similarly to the top end jig 30, since the adjustment shaft member 31, the vertical positioning portion 32, and the reinforcing bar attachment portions 35 and 39 are formed integrally with the top end projection jig 30 </ b> A, the labor for molding can be saved. Provided at low cost. In the modification, the number of reinforcing bar attachment portions is not limited to two, but may be three or more. Moreover, it is not necessary to arrange in the axial direction also about the attachment position of a reinforcing bar attachment part. In the reference example 2 and the modified example, similarly to the reference example 1 , in order to attach to the horizontal reinforcing bar, the reinforcing bar attaching portions 35 and 39 are attached to the adjustment shaft member 31 so as to be orthogonal to the axial direction. it can.

Next, Reference Example 3 will be described with reference to the drawings.
In Reference Example 3 , as shown in FIGS. 13 and 14, the top end positioning jig 45 is configured such that the vertical positioning part 15 is omitted from the top end positioning jig 10 of Reference Example 1 except that the disk-shaped vertical positioning part 15 is omitted. The coloring mark 46 is drawn in a conspicuous color such as red on the outer peripheral surface of the adjustment shaft member 11 as an equivalent to the above. About another structure, it is the same as that of the reference example 1, and uses the same code | symbol about the same location.

When determining the concrete placement height, the top edge projection jig 45 of Reference Example 3 is erected with a bar for leveling the top edge according to the colored mark 46, and the height is adjusted by a laser emitter. Thus, the concrete placement position and the top level can be determined. Thereby, the colored mark 46 can be used as a standard for determining the concrete placement position and the top level, and the colored mark 46 can be used as a mark when placing the concrete.

Next, embodiments of the present invention will be described with reference to the drawings.
FIGS. 15 and 16 show a top end jig as an embodiment in a partially broken front view and bottom view. The top end jig 50 is a straight, long rod made of resin, and an adjustment shaft member 51 provided with a top end height adjusting means for adjusting the top end height on one end side (the upper end side shown in FIG. 15). And a reinforcing bar attachment portion 61 made of resin that is integrally formed on the outer wall on the other end side of the adjustment shaft member 51 and is attached to the reinforcing bar.

The adjustment shaft member 51 is provided with linear protrusions 52 that slightly protrude outward and extend in the axial direction at four positions spaced at equal intervals in the circumferential direction of the substantially cylindrical outer peripheral surface. Further, the adjustment shaft member 51 is provided with a thin disc-like vertical positioning portion 53 having a thickness similar to that described in Reference Example 1 at a position near one end in the axial direction so as to extend from the outer peripheral surface in the direction perpendicular to the axis. . The upper part from the vertical positioning portion 53 of the adjustment shaft member 51 is a screw portion 54 that is cylindrical and has a screw groove coaxially formed on the outer peripheral surface thereof. A cap-shaped adjusting tool 55 is attached to the screw portion 54. As shown in FIGS. 17A and 17B, the adjustment tool 55 is cylindrical and has a cap shape in which one end is sealed by a thick plate portion 56 and the other end is opened, and the inner diameter of the cylindrical portion 57 is the screw portion 54. , And a thread groove is formed on the inner peripheral surface 57a. A cross-shaped adjustment hole 56 a is provided on the upper surface of the thick plate portion 56. The adjustment tool 55 is configured such that the axial height is adjusted by screwing the inner peripheral surface 57a of the cylindrical portion 57 into the screw portion 54 and turning it manually or by inserting a screwdriver into the adjustment hole 56a. ing. That is, the adjustment tool 55 and the screw portion 54 constitute a top height adjustment means.

  The reinforcing bar mounting portion 61 is a thin, semi-cylindrical first mounting piece 62 that extends from the adjustment shaft member 51 to both sides and is formed on the other side of the first mounting piece 62 (on the rear side in FIG. 15). A semi-cylindrical second mounting piece 66 is integrally mounted at the tip of the extended portion 62b so as to be bent and deformable. The first mounting piece 62 has a semi-cylindrical shape in which a substantially quarter-circular portion of the cylindrical shape is removed, and the inner diameter of the first mounting piece 62 is 10 mmφ whose inner diameter is the first diameter in accordance with the reinforcing bar 5 having a thickness of 10 mmφ. A first engagement protrusion 63 is formed on the outer peripheral surface of a portion 62a extending to one side (the front side in FIG. 15) and protrudes outward on the tip side and extends in the axial direction. And a second engagement protrusion 64 that protrudes outward at a position near the adjustment shaft member 51 and extends in the axial direction. A semi-cylindrical second attachment piece 66 is attached to the tip of a portion 62b extending to the other side of the first attachment piece 62 via a thin connecting portion 65 so that it can be bent and deformed. The second mounting piece 66 has a semi-cylindrical shape in which a substantially 1/2 circumferential portion of the cylindrical shape is removed. The second mounting piece 66 has a second inner diameter larger than the first diameter in accordance with a reinforcing bar having a thickness of 13 mmφ. The locking projection 67 is formed so as to be slightly smaller than the diameter of 13 mmφ, and slightly protrudes inward at the inner peripheral portion of the tip and extends in the axial direction.

In the embodiment , the top end jig 50 is arranged in a vertical state with one end of the adjustment shaft member 51 facing upward, and is aligned with the upper end position of the concrete placement using the vertical positioning portion 53, When the reinforcing bar attaching portion 61 is attached to the reinforcing bar 5 having an outer diameter of 10 mmφ, the first mounting piece 62 is fitted on the outer periphery of the reinforcing bar 5 as shown in FIGS. By locking the locking projection 67 with the second engagement projection 64 of the first mounting piece 62, the reinforcing bar mounting portion 61 is firmly fixed to the reinforcing bar 5 while being tightened by the second mounting piece 66. Further, when the reinforcing bar attaching portion 61 is attached to the reinforcing bar 6 having an outer diameter of 13 mmφ which is thicker than the first diameter, the first attaching piece 62 is widened together with the second attaching piece 66 as shown in FIGS. The rebar attachment part 61 is a second attachment piece 66 by fitting the engagement protrusion 67 of the second attachment piece 66 to the first engagement protrusion 63 of the first attachment piece 62 by fitting to the outer periphery of the rebar 6. In the tightened state, the outer diameter is firmly fixed to the reinforcing bar 6 having a thickness of 13 mmφ. In the embodiment , the reinforcing bar attaching portion 61 is locked to the reinforcing bar by locking the locking protrusion 67 of the second mounting piece 66 to the first engaging protrusion 63 or the second engaging protrusion 64 of the first mounting piece 62. Therefore, it is possible to easily attach the top end jig 50 to the reinforcing bars between narrow foundation molds.

As a result, in the embodiment , since it can be fixed to two types of reinforcing bars having different thicknesses by the single reinforcing bar mounting portion 61, it is possible to easily and inexpensively cope with reinforcing bars having different diameters. In addition, according to the embodiment , since the reinforcing bar attaching portion 61 is fastened and fixed to the reinforcing bars 5 and 6 by the second mounting piece 66, the strength of the mounting is ensured, and the adjusting shaft member is obtained by placing concrete. Even when 51 receives a large load, it is possible to reliably prevent the reinforcing bar mounting portion 61 from coming off the reinforcing bar.

Further, in the embodiment , after the concrete is placed, the adjusting tool 55 is screwed onto the threaded portion 54 formed on the cylindrical outer peripheral surface on one end side of the adjusting shaft member 51 at the inner peripheral surface 57a. By moving in the axial direction, the final top level of the concrete foundation can be adjusted easily and precisely. Further, the top level can be easily adjusted without using a driver by turning the adjustment tool 55 by hand.

Next, a modification of the above embodiment will be described.
In the modified example, as shown in FIG. 22, the top end projection jig 50 </ b> A is configured by the adjusting tool 55 and the screw portion 54 as the top end height adjusting means, as in the above Reference Examples 1 and 2 , A screw hole 13 is provided at one end of the adjustment shaft member 51, and an adjustment screw 14 is screwed into the screw hole 13. Also by this, the top level can be easily adjusted, and the effect of the reinforcing bar attaching portion 61 can be obtained.

Next, Reference Example 4 will be described with reference to the drawings.
FIG. 23 and FIG. 24 show a top edge extraction jig 70 as Reference Example 4 with a front view and a bottom view. The top end jig 70 is a straight straight round bar made of resin and has an adjustment shaft member 71 having a screw hole 73 extending in a predetermined dimension in the axial direction at one end (upper end shown in FIG. 23), and a screw hole 73. And a rebar insertion hole 75 provided on the other end side (lower end side shown in FIG. 23) of the adjustment shaft member 71 and removably inserted into the rebar. Yes. Further, the adjustment shaft member 71 is provided with a thin disc-shaped vertical positioning portion 72 extending in the direction perpendicular to the axis from the outer peripheral surface at a position near one end in the axial direction. The bar is erected and the height is adjusted by a laser emitter to determine the concrete placement position and the top level. The reinforcing bar insertion hole 75 extends in the axial direction from the lower end in a predetermined dimension, and the outer diameter at the lower end position 75a is larger than the inner diameter at the hole inner end position 75b. For example, when a vertical reinforcing bar having outer diameters of 10 mm and 13 mm is targeted, the outer diameter at the lower end position 75a is 14 mm and the outer diameter at the inner end position 75b is 9 mm.

Next, the operation of Reference Example 4 will be described. As shown in FIG. 25, the top end fitting jig 70 is arranged with one end of the adjustment shaft member 71 facing upward, and is placed between the molds in the reinforcing bar insertion hole 75 on the other end side of the adjustment shaft member 71. Is inserted from the upper end of the vertical rebar 5 having an outer diameter of 10 mmφ and is fitted into the vicinity of the upper end of the rebar 5 by the inclined surface of the rebar insertion hole 75 and fixed. In this attachment state 1, the vertical positioning portion 72 is aligned with the upper end position of the concrete placement. Thereafter, the concrete is driven to the position of the vertical positioning portion 72 of the adjustment shaft member 71. However, since the top edge jig 70 is fixed to the vertical reinforcing bar 5 and does not move, the adjustment shaft can be adjusted even before the concrete is sufficiently cured. The top level, which is the final height of the concrete foundation, can be precisely adjusted by the adjusting screw 74 screwed into the screw hole 73 of the member 71, and the leveler can be poured in accordance with the height. As a result, in Reference Example 4 , with respect to the displacement of the reinforcing bars up and down, left and right after concrete placement, and fluctuations due to the unevenness and inclination of the concrete surface, the final adjustment was performed by adjusting screws within a short period after concrete placement. Therefore, the workability of the concrete placing work can be improved.

Further, since the adjusting shaft member 71 has the reinforcing bar insertion hole 75 on the other end side, the diameter of the adjusting shaft member 71 can be reduced by inserting and fitting to the appropriate inner diameter position of the reinforcing bar insertion hole with respect to the difference in the diameter of the reinforcing bar. It can be firmly attached to different reinforcing bars. For example, when the vertical reinforcing bar 6 having an outer diameter of 13 mmφ is targeted, the upper end of the reinforcing bar 6 is locked at a substantially intermediate position in the axial direction of the reinforcing bar insertion hole 75 of the adjustment shaft member 71 as shown in FIG. It is firmly attached (attachment state 2). As a result, in Reference Example 4 , it is possible to firmly attach the reinforcing bars with different diameters to the reinforcing bars with different diameters only by preparing one type of top edge jig 70, so that the attaching operation is simple. In addition, the labor for managing the top edge jig is saved, and the price is relatively low.

Further, in Reference Example 4 , since the adjustment shaft member 71 can be easily attached to the reinforcing bar by inserting it into the reinforcing bar through the reinforcing bar insertion hole 75 on the other end side of the adjustment shaft member 71, The top end jig 70 is easily attached to the reinforcing bar. Furthermore, in Reference Example 4 , the height of the top end can be adjusted by the adjusting screw 74 before the concrete foundation is hardened, so that the leveler can be poured before hardening, so that the adhesion strength between the concrete and the leveler is high. Since it is enhanced, it is not necessary to apply an adhesive to the concrete foundation, so that the concrete foundation placing operation is further simplified. In Reference Example 4 , even if the head of the adjustment screw 74 protrudes from the leveler surface after the leveler is dried, the head can be easily lowered by turning the adjustment screw 74. as possible out to be in.

Next, a modification of the reference example 4 will be described.
In the modification, the top end jig 70A is provided with a reinforcing bar insertion hole 78 on the lower end side of the adjustment shaft member 71 in the top end jig 70 of Reference Example 4 , as shown in FIGS. On the lower side portion, slits 79 extending in the axial direction are provided at four equally spaced intervals in the circumferential direction, and the lower side portion is arranged separately into four engagement pieces 77. Thereby, in the modification, when the top end projection jig 70A is inserted from the upper end side of the reinforcing bars 5 and 6 on the lower end side, the outer end in the radial direction is caused by the elastic deformation of the engagement piece 77 separated by the slit 79. Therefore, the top end jig 70A is smoothly inserted into the reinforcing bars 5 and 6. In addition, after the top end jig 70A is inserted into the reinforcing bars 5 and 6, the elastic reaction force of the engagement piece 77 acts as a strong fastening force directed radially inward to the reinforcing bars 5 and 6. . Therefore, the adjustment shaft member 71 is firmly fixed to the reinforcing bars 5 and 6 so as not to move even when the height of the adjustment screw 74 is adjusted or when the concrete is placed.

Next, Reference Example 5 will be described with reference to the drawings.
In Reference Example 5 , as shown in FIGS. 29 and 30, the top end jig 80 is integrated with the top end jig 10 of Reference Example 1 so as to surround one end in the vicinity of the upper end of the adjustment shaft member 11. The concrete shielding part 81 which is a small container-like vertical positioning part with an open upper end is provided in the thin cylindrical shape made of resin. About another structure, it is the same as that of the reference example 1, and uses the same code | symbol about the same location. The concrete shielding portion 81 integrally includes a bottom plate portion 82 extending radially from the outer periphery at a position near the upper end of the adjustment shaft member 11 and a peripheral wall portion 83 extending from the bottom plate portion 82 to the upper end in the axial direction. It is formed integrally with the adjusting shaft member 11 by resin molding. In the reference example 5 , the concrete shielding part 81 is formed integrally with the adjustment shaft member 11, but may be a separate member from the adjustment shaft member 11.

In the reference example 5 , the top end jig 80 has the upper end of the adjusting shaft member 11 surrounded by the concrete shielding portion 81 at the time of placing the concrete. Prevents adhesion of concrete to the surface. Therefore, according to the reference example 5 , the top end level adjustment by the adjustment screw 14 after placing the concrete can be reliably performed without being hindered by the adhesion of concrete. In addition, the concrete shielding part 81 uses a bottom plate part 82 to set up a top bar for raising the top end level in the same manner as the vertical positioning part 15 and adjust the height by a laser emitter. The concrete placement position and the top level can be determined.

Next, Reference Example 6 will be described with reference to the drawings.
As shown in FIG. 31, the top end jig 85 of Reference Example 6 is a vertical positioning member 86, which is a separate member from the adjustment shaft member 31, in the top end jig 30 of Reference Example 2 . Is. As shown in FIGS. 32A and 32B, the vertical positioning member 86 is a thin cylindrical member made of resin, and has a cylindrical portion 87 and a flat plate portion that closes an opening in one axial direction of the cylindrical portion 87 (the upper end in FIG. 32A). 88 and an annular flange 89 extending radially outward at the other axial end of the cylindrical portion 87 (lower end in FIG. 32A), and a circular opening 91 is formed at the center of the flat plate portion 88. Have. The cylindrical portion 87 has an axial length substantially equal to the outer diameter, and the inner diameter is slightly smaller than the outer diameter on the upper end side of the adjustment shaft member 31. The outer diameter of the collar portion 89 is the same as the outer diameter of the vertical positioning portion 32 of the top end jig 30. As shown in FIG. 31, the vertical positioning member 86 is fixed by being press-fitted into the outer periphery of one end side of the adjustment shaft member 31 that does not have the vertical positioning portion from the flange portion 89 side. Formed.

In Example 6, the vertical positioning member 86 and the adjusting shaft member 31 are separate members, but in which the vertical positioning member 86 is inserted by press-fitting the axial end of the adjusting shaft member 31, carried Similarly to the examples and reference examples 1 to 5 , a height adjusting jig can be erected on the flange portion 89 of the vertical positioning member 86 to be used for adjusting the concrete placement height and the top end level. Further, the flange portion 89 of the vertical positioning member 86 can be used as a mark for placing concrete. Further, by making the vertical positioning member 86 a separate member from the adjustment shaft member 31, both members can be molded separately, so that the mold is simplified and the mold is made inexpensive.

In addition, in the said Example and Reference Examples 1-6 , although the adjustment shaft member, the vertical positioning part, the reinforcing bar attachment member, and the reinforcing bar attachment part which comprise a top end extraction jig | tool are resin, it replaces with this and metal It is also possible to make it. Moreover, in the said Example and Reference Examples 1-6 , you may cover caps, such as a vinyl sheet, on the upper end of an adjustment shaft member, and, thereby, the adhesion of concrete to an adjustment shaft member upper end and an adjustment screw is further increased. This can be reliably prevented, and the top end of the adjustment screw can be more reliably performed. Moreover, also in the said Example and Reference Examples 1-5 , a vertical positioning part can be used as a vertical positioning member different from an adjustment shaft member like the reference example 6. FIG. Furthermore, also in the said Example and the reference examples 2-6 , in order to attach to a horizontal reinforcing bar similarly to the modification of the reference example 1 , the reinforcing shaft attaching member 18 and the reinforcing bar attaching parts 35 and 61 are adjusted the shaft member 11, 31, 51 can be attached so as to be orthogonal to the axial direction.

Moreover, also in the said reference examples 1-6 , an adjustment tool can be used instead of an adjustment screw similarly to an Example . Further, in each of the above-described embodiments and modifications, the shape of the adjustment shaft member is not limited to a cylindrical shape and a prismatic shape, and various shapes can be used. In addition, the top edge fitting jigs shown in the above embodiments and reference examples are only examples, and various modifications can be made without departing from the spirit of the present invention.

  The top edge jig of the present invention is arranged with one end of the adjustment shaft member facing upward, and is attached to and detached from the rebar disposed between the molds at the rebar mounting portion provided on the outer wall on the other end side. After the concrete is driven to the upper end of the adjusting shaft member by being fixed freely, the concrete foundation is finally raised by the adjusting screw screwed into the screw hole of the adjusting shaft member before the concrete is hardened. Therefore, the concrete can be placed in a short time, which is useful.

It is a front view which shows the top edge extraction jig | tool which is the reference example 1 of this invention. It is a bottom view which shows the same top end jig | tool. It is a front view which shows the adjustment shaft member of a top end extraction jig | tool. It is a top view which shows the adjustment shaft member. It is a partially broken front view which shows the reinforcing bar attachment member of a top end extraction jig | tool. It is a top view which shows the same reinforcing bar attachment member. It is explanatory drawing explaining the use condition of the same top end jig | tool. It is a front view which shows the top edge extraction jig | tool which is a modification of the reference example 1. FIG. It is a bottom view which shows the same top end jig | tool. It is a partially broken front view which shows the reinforcing bar attachment member of the same top end jig. It is a partially broken top view which shows the same reinforcing bar attachment member. It is a front view which shows the top edge extraction jig | tool which is the reference example 2. FIG. It is a top view which shows the same top end jig | tool. It is a front view which shows the top edge extraction jig | tool which is a modification of the reference example 2. FIG. It is a bottom view which shows the same top end jig | tool. It is a front view which shows the top edge extraction jig | tool which is the reference example 3. FIG. It is a top view which shows the same top end jig | tool. It is a partially broken front view which shows the top edge extraction jig | tool which is an Example . It is a bottom view which shows the same top end jig | tool. It is a partially broken front view which shows the adjustment tool of the same top end jig | tool. It is a top view which shows the adjustment tool. It is a front view which shows the use condition 1 of the top edge extraction jig | tool which is an Example . It is a bottom view which shows the use condition 1 of the same top end jig | tool. It is a front view which shows the use condition 2 of the top edge extraction jig | tool which is an Example . It is a bottom view which shows the use condition 2 of the same top end jig | tool. It is a front view showing a top end out jig which is a modification of the embodiment. It is a partially broken front view which shows the top edge extraction jig | tool which is the reference example 4. FIG. It is a bottom view which shows the same top end jig | tool. It is a partially broken front view which shows the attachment state 1 to the reinforcing bar of the same top end sticking jig. It is a partially broken front view which shows the attachment state 2 to the reinforcing bar of the same top end jig | tool. It is a partially broken front view which shows the top edge extraction jig | tool which is a modification of the reference example 4 . It is a bottom view which shows the same top end jig | tool. It is a partially broken front view which shows the top edge extraction jig | tool which is the reference example 5. FIG. It is a top view which shows the same top end jig | tool. It is a front view which shows the top edge extraction jig | tool which is the reference example 6. FIG. It is a partially broken front view which shows the vertical positioning member of the same top end jig | tool. It is a top view which shows the same vertical positioning member.

1, 5, 6 ... vertical reinforcing bars 10, 10 </ b> A, 30, 30 </ b> A, 45, 50, 50 </ b> A, 70, 70 </ b> A, 80, 85 ... top projection jig, 11, 31, 51, 71. 33, 73 ... Screw holes, 14, 34, 74 ... Adjustment screws, 15, 32, 72 ... Vertical positioning parts, 18, 28 ... Reinforcing bar mounting members, 35, 39, 61 ... Reinforcing bar mounting parts, 46 ... Colored marks, 52 ... Linear protrusion, 54 ... Screw part, 55 ... Adjuster, 62 ... First attachment piece, 66 ... Second attachment piece, 75, 78 ... Reinforcing bar insertion hole, 79 ... Slit, 81 ... Concrete shielding part, 86 ... vertical positioning member.

Claims (5)

An adjustment shaft member provided with a top end height adjusting means for adjusting the top end height on one end side in a rod shape, and vertical positioning for determining a vertical position of the adjustment shaft member provided on one end side of the adjustment shaft member And the other end-side outer wall of the adjustment shaft member are provided in parallel or perpendicular to the axial direction of the adjustment shaft member, and are attached to a reinforcing bar disposed on the ground so that one end of the adjustment shaft member is And a reinforcing bar mounting portion that is arranged in a vertical state toward the
The reinforcing bar attaching portion is attached to the adjusting shaft member integrally or separately, and has a semi-cylindrical shape formed to have a predetermined first diameter extending from both sides of the adjusting shaft member to one side. On the outer peripheral surface of the extended portion, there is provided a first engagement protrusion that protrudes outward on the distal end side and extends in the axial direction, and protrudes outward in the vicinity of the adjustment shaft member and extends in the axial direction. A first mounting piece provided with a second engagement protrusion and a predetermined second diameter larger than the first diameter mounted so as to be able to be bent and deformed at the tip of a portion extending to the other side of the first mounting piece. A semi-cylindrical shape that is provided with a second attachment piece provided with a locking protrusion that can be locked to the first engaging protrusion and the second engaging protrusion on the tip side. Top edge jig.   The top end height adjusting means includes a screw hole formed to extend in the axial direction at one end of the adjusting shaft member, and an adjusting screw screwed into the screw hole to be movable in the axial direction. The top edge jig according to claim 1, wherein the top edge jig is provided.   The top end height adjusting means includes a threaded portion formed on a cylindrical outer peripheral surface on one end side of the adjusting shaft member, and a thread groove formed on the inner peripheral surface in a cylindrical shape with one end sealed, 2. The cap-shaped adjusting tool that is screwed into a threaded portion of the adjusting shaft member at a thread groove on an inner peripheral surface and is movable in the axial direction. Top edge jig.   4. The linear shaft according to claim 1, wherein a plurality of linear protrusions projecting outward at a plurality of locations in the circumferential direction and extending in the axial direction are provided on an outer surface of the adjustment shaft member. The top edge jig according to item 1. The vertical positioning portion integrally includes a bottom plate portion extending in the radial direction from the outer periphery of the adjustment shaft member and an annular peripheral wall portion extending from the outer periphery of the bottom plate portion to one axial end side. The top edge taking out jig according to any one of claims 1 to 4 .

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